- 您现在的位置：买卖IC网 > PDF目录68612 > TPS2398DGKRG4 (TEXAS INSTRUMENTS INC) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 PDF资料下载
参数资料
| 型号： | TPS2398DGKRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | GREEN, PLASTIC, MSOP-8 |
| 文件页数： | 6/27页 |
| 文件大小： | 792K |
| 代理商： | TPS2398DGKRG4 |
第1页第2页第3页第4页第5页当前第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页
TPS2398
TPS2399
SLUS562A JUNE 2003 REVISED SEPTEMBER 2003
14
www.ti.com
APPLICATION INFORMATION
Figure 20
INPUT TRANSIENT RESPONSE
CLOAD = 100 F
RLOAD = 50
RSNS = 20 m
CIRAMP = 3900 pF
IINB= (2 A/div)
48V_RTN (5 V/div)
(Offset 44 V)
t TIme 100
s/div
GATE (5 V/div)
VDRAIN (5 V/div)
PG (50 V/div)
In order for downstream loads (bricks, etc.) to operate through the distribution bus transient, it is important to
properly size the filtering capacitance to supply the needed energy during the OFF-time of the pass FET. In this
example, once the RTN node stabilizes at about 3.5 V higher than the original potential, about 4.5 V develops
across the FET, indicating approximately a 1-V droop across the brick input. Therefore, due to the fast response
of the TPS2398/99 devices, the 100-
F capacitor achieves excellent hold-up of the brick input voltage. Actual
requirements depend heavily on the individual application. Whether the device turns back on in either
current-ramp or current-limit mode depends in part on the size of the ramp capacitor (CIRAMP) and the input
capacitance of the pass FET. But in any case, the circuit turns back on in a controlled-current manner after
rapidly clamping the potentially damaging spike.
相关PDF资料 |
PDF描述 |
|---|---|
| TPS3802L30DCK | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| TPS3801T50DCKT | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| TPS3801E18DCK | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| TPS3801-01DCKRG4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| TPS3802L30DCKRG4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS2398EVM | 功能描述:电源管理IC开发工具 TPS2398 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS2399D | 制造商:Texas Instruments 功能描述: |
| TPS2399DGK | 功能描述:热插拔功率分布 Simple -48V Controller w/Enable RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2399DGKG4 | 功能描述:热插拔功率分布 Simple -48V Controller w/Enable RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2399DGKR | 功能描述:热插拔功率分布 Simple -48V Controller w/Enable RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。